// System.Reflection/TypeDelegator.cs
//
// Paolo Molaro (lupus@ximian.com)
//
// (C) 2002 Ximian, Inc.

//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Reflection;
using System.Globalization;
using System.Runtime.InteropServices;

namespace System.Reflection {

	[ComVisible (true)]
	[Serializable]
	public class TypeDelegator : 
#if NET_4_5
		TypeInfo, IReflectableType
#else
		Type
#endif
	{
		protected Type typeImpl;
	
		protected TypeDelegator () {
		}

		public TypeDelegator( Type delegatingType)
		{
			if (delegatingType == null)
				throw new ArgumentNullException ("delegatingType must be non-null");
			typeImpl = delegatingType;
		}

		public override Assembly Assembly {
			get { return typeImpl.Assembly; }
		}

		public override string AssemblyQualifiedName {
			get { return typeImpl.AssemblyQualifiedName; }
		}

		public override Type BaseType {
			get { return typeImpl.BaseType; }
		}

		public override string FullName {
			get { return typeImpl.FullName; }
		}

		public override Guid GUID {
			get { return typeImpl.GUID; }
		}

		public override Module Module {
			get { return typeImpl.Module; }
		}

		public override string Name {
			get { return typeImpl.Name; }
		}

		public override string Namespace {
			get { return typeImpl.Namespace; }
		}

		public override RuntimeTypeHandle TypeHandle {
			get { return typeImpl.TypeHandle; }
		}

		public override Type UnderlyingSystemType {
			get { return typeImpl.UnderlyingSystemType; }
		}

		protected override TypeAttributes GetAttributeFlagsImpl ()
		{
			return typeImpl.Attributes;
		}
		
		protected override ConstructorInfo GetConstructorImpl (
			BindingFlags bindingAttr, Binder binder, CallingConventions callConvention,
			Type[] types, ParameterModifier[] modifiers)
		{
			return typeImpl.GetConstructor (bindingAttr, binder, callConvention, types, modifiers);
		}

		[ComVisible (true)]
		public override ConstructorInfo[] GetConstructors( BindingFlags bindingAttr)
		{
			return typeImpl.GetConstructors (bindingAttr);
		}

		public override object[] GetCustomAttributes (bool inherit)
		{
			return typeImpl.GetCustomAttributes (inherit);
		}

		public override object[] GetCustomAttributes (Type attributeType, bool inherit)
		{
			return typeImpl.GetCustomAttributes (attributeType, inherit);
		}

		public override Type GetElementType()
		{
			return typeImpl.GetElementType ();
		}

		public override EventInfo GetEvent( string name, BindingFlags bindingAttr)
		{
			return typeImpl.GetEvent (name, bindingAttr);
		}

		public override EventInfo[] GetEvents()
		{
			return GetEvents (BindingFlags.Public);
		}

		public override EventInfo[] GetEvents (BindingFlags bindingAttr)
		{
			return typeImpl.GetEvents (bindingAttr);
		}

		public override FieldInfo GetField (string name, BindingFlags bindingAttr)
		{
			return typeImpl.GetField (name, bindingAttr);
		}

		public override FieldInfo[] GetFields( BindingFlags bindingAttr)
		{
			return typeImpl.GetFields (bindingAttr);
		}

		public override Type GetInterface( string name, bool ignoreCase)
		{
			return typeImpl.GetInterface (name, ignoreCase);
		}

		[ComVisible (true)]
		public override InterfaceMapping GetInterfaceMap( Type interfaceType)
		{
			return typeImpl.GetInterfaceMap (interfaceType);
		}
		
		public override Type[] GetInterfaces ()
		{
			return typeImpl.GetInterfaces ();
		}

		public override MemberInfo[] GetMember( string name, MemberTypes type, BindingFlags bindingAttr)
		{
			return typeImpl.GetMember (name, type, bindingAttr);
		}

		public override MemberInfo[] GetMembers( BindingFlags bindingAttr)
		{
			return typeImpl.GetMembers (bindingAttr);
		}

		protected override MethodInfo GetMethodImpl( string name, BindingFlags bindingAttr, Binder binder, CallingConventions callConvention, Type[] types, ParameterModifier[] modifiers)
		{
			// Can't call GetMethod since it makes restrictive argument checks
			return typeImpl.GetMethodImplInternal (name, bindingAttr, binder, callConvention, types, modifiers);
		}

		public override MethodInfo[] GetMethods( BindingFlags bindingAttr)
		{
			return typeImpl.GetMethods (bindingAttr);
		}

		public override Type GetNestedType( string name, BindingFlags bindingAttr)
		{
			return typeImpl.GetNestedType (name, bindingAttr);
		}

		public override Type[] GetNestedTypes( BindingFlags bindingAttr)
		{
			return typeImpl.GetNestedTypes (bindingAttr);
		}

		public override PropertyInfo[] GetProperties( BindingFlags bindingAttr)
		{
			return typeImpl.GetProperties (bindingAttr);
		}

		protected override PropertyInfo GetPropertyImpl( string name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers)
		{
			// Can't call GetProperty since it makes restrictive argument checks
			return typeImpl.GetPropertyImplInternal (name, bindingAttr, binder, returnType, types, modifiers);
		}

		protected override bool HasElementTypeImpl()
		{
			return typeImpl.HasElementType;
		}

		public override object InvokeMember( string name, BindingFlags invokeAttr, Binder binder, object target, object[] args, ParameterModifier[] modifiers, CultureInfo culture, string[] namedParameters) {
			return typeImpl.InvokeMember (name, invokeAttr, binder, target, args, modifiers, culture, namedParameters);
		}

		protected override bool IsArrayImpl()
		{
			return typeImpl.IsArray;
		}

		protected override bool IsByRefImpl()
		{
			return typeImpl.IsByRef;
		}

		protected override bool IsCOMObjectImpl()
		{
			return typeImpl.IsCOMObject;
		}

		public override bool IsDefined( Type attributeType, bool inherit) {
			return typeImpl.IsDefined (attributeType, inherit);
		}

		protected override bool IsPointerImpl()
		{
			return typeImpl.IsPointer;
		}

		protected override bool IsPrimitiveImpl()
		{
			return typeImpl.IsPrimitive;
		}

		protected override bool IsValueTypeImpl()
		{
			return typeImpl.IsValueType;
		}

		public override int MetadataToken {
			get {
				return typeImpl.MetadataToken;
			}
		}

#if NET_4_5
		public override bool IsConstructedGenericType {
			get { return typeImpl.IsConstructedGenericType; }
		}

		public override bool IsAssignableFrom (TypeInfo typeInfo)
		{
			if (typeInfo == null)
				throw new ArgumentNullException ("typeInfo");

			return IsAssignableFrom (typeInfo.AsType ());
		}
#endif

	}
}